The Challenge
A 100-year-old Peranakan shophouse in the Emerald Hill conservation area suffered extensive mould damage after years of neglect. The challenge: remove severe mould contamination while preserving original lime plaster, timber features, and decorative tiles protected under URA conservation guidelines.
Our Approach
- Detailed assessment - Mapping mould extent without invasive investigation
- Conservation consultation - Working with heritage specialists
- Gentle remediation - Using conservation-approved chemicals
- Moisture source resolution - Fixing drainage without modern waterproofing
- Long-term protection - Heritage-compatible antimicrobial treatment
Results
Complete mould removal achieved while preserving 95% of original features. The property passed URA inspection and now has a maintenance plan to prevent recurrence. Property value increased significantly post-restoration.
Frequently Asked Questions
Can mould be removed from heritage buildings without damaging original features?
Yes, with specialized techniques. Heritage mould removal requires gentler methods than modern buildings - soft chemical treatments, controlled humidity, and careful physical cleaning. We work with conservation specialists to ensure original plasterwork, timber, and other features are preserved.
Are old shophouses more prone to mould than modern buildings?
Yes, for several reasons: original construction didn't include damp-proof courses, lime plaster is more absorbent than modern materials, older drainage systems may leak, and conservation restrictions may limit modern waterproofing solutions. However, proper maintenance can control mould effectively.
What permissions are needed for mould remediation in conservation areas?
For URA conservation shophouses, minor interior works typically don't need approval, but any work affecting the facade, five-foot way, or structural elements requires URA permission. Always check with your contractor and URA before major remediation work to ensure compliance.
How can I prevent mould from returning to my heritage property?
Maintain consistent humidity below 60%, ensure good ventilation (especially in internal rooms), address water ingress promptly, use appropriate heritage-friendly waterproofing, service traditional roof drainage regularly, and conduct annual mould inspections during monsoon season.